A six-year moratorium on logging native forest in those areas will be in place to “reassess” their best use.

Mr Harriss unveiled a range of measures designed to boost the ailing sector, including a new ministerial advisory council. Tougher penalties for protesters who invade workplaces such as timber processors will also be put in place.

The minister said Will Hodgman's government had a mandate to rip up the peace deal, which would have meant protection for 500,000 hectares in return for green groups' support in markets.

About $100 million of federal government money was also unlocked by the deal, much of which is still to flow but to which the Abbott government has committed.

“It is time to step back from the brink, reassess the events of the last four years and plot a new course for the native forest industry ... based on science, not politics,” Mr Harriss said. Opposition leader and former forestry minister Bryan Green accused the new government of duplicity over its election commitments.

“They promised to unlock Tasmania,” Mr Green said.

“What they're saying ... is they'll unlock it potentially, maybe in six years' time.” Labor and the Greens both attacked the government over its pledge to stop propping up the loss-making logging agency Forestry Tasmania.

“This all points to a repeat of the bankrupted Robin Gray era when Forestry borrowed millions, but the taxpayer ended up paying the debt,” Greens leader Kim Booth said.